MICRODETERMINATION AND SEPARATION OF CALCIUM AND STRONTIUM IN URINE

Journal Article · Wed May 01 04:00:00 EDT 1963 · Microchemical Journal (U.S.)

DOI:https://doi.org/10.1016/0026-265X(63)90014-6· OSTI ID:4712234

Taussky, H H

A method is presented for the determination and separation of calcium and strontium in urine. It is based on the different solubilities of the sulfates in weakly acid solution. The separation is accomplished by dissolving the combined oxalates in ammonium bisulfate and heating in a boiling water bath for 25 minutes. The specificity of the direct precipitation of calcium oxalate from urine is improved by a preliminary extraction with chloroform. A new wash liquid is introduced, a mixture of concentrated ammonia and glacial acetic acid, in which calcium and strontium oxalate are practically insoluble. The method is easily applied to serum and ash solutions of biological specimens. (auth)

• Research Organization: Inst. of Muscle Disease, New York
• Sponsoring Organization: USDOE
• NSA Number: NSA-17-023284
• OSTI ID: 4712234
• Journal Information: Microchemical Journal (U.S.), Journal Name: Microchemical Journal (U.S.) Vol. Vol: 7; ISSN MICJA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ACETIC ACID
ACIDS
AMMONIA
AMMONIUM COMPOUNDS
BLOOD SERUM
BOILING
CALCIUM
CALCIUM COMPOUNDS
CALCIUM SULFATES
CHEMISTRY
CHLORINATED HYDROCARBONS
CHLOROFORM
HEATING
OXALATES
PRECIPITATION
QUALITATIVE ANALYSIS
QUANTITATIVE ANALYSIS
RESIDUES
SEPARATION PROCESSES
SOLUBILITY
SOLUTIONS
SOLVENT EXTRACTION
STRONTIUM
STRONTIUM COMPOUNDS
SULFATES
TISSUES
TRACE AMOUNTS
URINE
USES
WATER